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3
RESULTS

Media Type
3
texts
Topics & Subjects
2
Concretions
1
Concretions -- Middle West
1
Geology, Stratigraphic -- Pennsylvanian
1
Pyrites -- Middle West
Collection
3
Biodiversity Heritage Library
3
Fieldiana
Creator
2
woodland, bertram g
1
nichols, henry w. (henry windsor), b. 1868
Language
3
English
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